The city of Frederick issued a release Wednesday night alerting residents that the city's wastewater treatment plant was at risk of additional overflow.

The release asks residents to curtail nonessential water use to avoid potential backups in collection lines and homes and preserve the ability to safely treat wastewater.

City of Frederick Mayor Michael O'Connor declared a state of emergency Wednesday to help the city receive state and federal assistance. O'Connor urged residents to take flood warnings seriously. Frederick County has also declared a state of emergency.